| COV LUS QHIA TXOG LSAW STEEL YEEB | |
| 1. Loj | 1) OD: 406mm-1500mm |
| 2) Phab ntsa tuab: 8mm-50mm | |
| 3) SCH20, SCH40, STD, XS, SCH80 | |
| 2. Txuj: | ASTM A53, API 5L,EN10219,EN10210,ASTM A252ASTM A500 thiab lwm yam |
| 3. Khoom siv | ASTM A53 Qib B,API 5L Gr.B,X42,X52,X60,X70,X80,S235JR,S355J0H,thiab lwm yam |
| 4. Siv: | 1) kua dej tsawg, dej, roj, roj, kab yeeb nkab |
| 2) cov qauv yeeb nkab, cov yeeb nkab piling kev tsim kho | |
| 3) laj kab, qhov rooj yeeb nkab | |
| 5. Txheej | 1) Bared 2) Dub Pleev Xim (txheej pleev xim) 3) Galvanized 4) Roj 5) PE, 3PE, FBE, txheej tiv taus kev sib xyaw, Txheej tiv thaiv xeb |
| 6.Txoj Kev | longitudinal welded steel yeeb nkab |
| 7. Kev Tshuaj Xyuas: | Nrog Hyd raulic Testing, Eddy Current, RT, UT lossis kev tshuaj xyuas los ntawm 3rd tog |
| 8. Kev xa khoom | Thawv, Lub Nkoj Loj. |
| 9. Txog Peb Qhov Zoo: | 1) Tsis muaj kev puas tsuaj, tsis muaj khoov 2) tsis muaj burrs lossis cov npoo ntse thiab tsis muaj scraps 3) Dawb rau oiled & cim 4) Txhua yam khoom tuaj yeem kuaj xyuas los ntawm kev tshuaj xyuas sab nraud ua ntej xa khoom |
Cov ntaub ntawv engineering ntawm Hong Kong
Cov ntaub ntawv engineering ntawm Qatar
Cov ntaub ntawv engineering ntawm Turkey
LSAW Yeeb Nkabadopts submerged arc vuam tshuab, siv cov khoom siv vuam, kev tiv thaiv cov khoom me me flux faus arc.
LSAW yog lus Askiv luv rau submerged arc welded ncaj seam steel yeeb nkab. Cov txheej txheem tsim khoom ntawm submerged arc welded ncaj seam steel yeeb nkab suav nrog JCOE forming technology, coil forming submerged arc welding technology thiab UOE forming technology.
Cov txheej txheem ntawm kev tsim cov yeeb nkab Longitudinal Submerged-arc Welded (LSAW) yog raws li nram no:
Ultrasonic phaj soj ntsuam → ntug milling → pre-bending → forming → Pre-welding → Internal welding → External welding → Ultrasonic tshuaj xyuas → X-ray tshuaj xyuas → Expanding → hydraulic kuaj → l. Chamfering → Ultrasonic tshuaj xyuas → X-ray tshuaj xyuas → magnetic particle tshuaj xyuas ntawm lub raj kawg
| Cov Kev Xav Tau Tensile | |||
| Qib 1 | Qib 2 | Qib 3 | |
| Lub zog tensile, min, psi (MPa) | 50 000 (345) | 60 000 (415) | 66 000 (455) |
| Cov ntsiab lus tawm los yog lub zog tawm los, min, psi (MPa) | 30 000 (205) | 35 000 (240) | 45 000 (310) |
| Qhov tsawg kawg nkaus elongation rau nominal phab ntsa thicknesses %6 nti (7.9 hli) lossis ntau dua: Elongation hauv 8 nti (203.2 hli), min, % Elongation hauv 2 nti (50.8 hli), min, % | 18 30 | 14 25 | ... 20 |
| Rau cov phab ntsa nominal thickness tsawg dua %6 nti (7.9 hli), qhov kev txiav tawm ntawm qhov tsawg kawg nkaus elongation hauv 2 nti (50.08 hli) rau txhua Vzi - nti (0.8 hli) txo qis hauv cov phab ntsa nominal thickness hauv qab %6 nti (7.9 hli), hauv feem pua | 1.5A | 1.25A | 1.0A... |
Kev Ntsuas Hydrostatic
Kev Ntsuas NDT (RT)
Kev Ntsuas NDT (UT)
Kev Ntsuas Kev Khoov—ib lub yeeb nkab ntev txaus yuav tsum sawv ntsug thaum txias txog 90 ° ncig lub mandrel cylindrical.
Kev sim ua kom tiaj tus-txawm hais tias tsis tas yuav kuaj, cov yeeb nkab yuav tsum muaj peev xwm ua tau raws li qhov yuav tsum tau ua kom tiaj tus.
Kev sim hydrostatictshwj tsis yog tias tau tso cai, txhua qhov ntev ntawm cov yeeb nkab yuav tsum raug rau qhov kev sim hydro-static yam tsis muaj kev xau los ntawm phab ntsa yeeb nkab.
Kev sim hluav taws xob tsis puas tsuaj-ua lwm txoj hauv kev rau qhov kev sim hydro-static, tag nrho lub cev ntawm txhua lub yeeb nkab yuav tsum tau sim nrog kev sim hluav taws xob tsis puas tsuaj. qhov twg kev sim hluav taws xob tsis puas tsuaj, qhov ntev yuav tsum tau cim nrog cov ntawv "NDE"
Kev ntsuam xyuas ultrasonic
Kev kuaj xyuas tam sim no eddy
Cov yeeb nkab liab qab, txheej dub (kho kom haum);
Ob qho kawg nrog cov tiv thaiv kawg;
Qhov kawg tiaj tus, qhov kawg bevel;
Kev cim.
| Sab Nraud Txoj Kab uas hla | Lub cheeb tsam sab nraud ntawm cov yeeb nkab yuav tsum tsis txhob txawv ntau dua ± 1% ntawm lub cheeb tsam sab nraud uas tau teev tseg. | ||
| Phab ntsa tuab | Lub phab ntsa tuab ntawm txhua qhov chaw yuav tsum tsis pub ntau tshaj 12.5% nyob rau hauv qhov teev tseg nominal phab ntsa tuab. | ||
| Qhov ntev | Cov yeeb nkab yuav tsum tau muab tso rau hauv ib qho ntev random, ob qhov ntev random, lossis hauv qhov ntev sib xws raws li tau teev tseg hauv daim ntawv xaj yuav khoom, raws li cov kev txwv hauv qab no: | Ib qho ntev random | 16 txog 25ft (4.88 txog 7.62mm), nti |
| Ob chav ntev random | Tshaj 25ft (7.62m) nrog qhov nruab nrab tsawg kawg yog 35ft (10.67m) | ||
| Qhov ntev sib xws | ntev raws li tau teev tseg nrog kev hloov pauv ntawm ± 1 nti. | ||
| Qhov hnyav | Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau ntsuas nyias thiab nws qhov hnyav yuav tsum tsis txhob hloov ntau tshaj 15% dhau los yog 5% qis dua nws qhov hnyav theoretical, xam los ntawm kev siv nws qhov ntev thiab nws qhov hnyav ib chav ntev. | ||
